Pint plant of my Kennedia nigricans Black Coral Pea vine. This is a wonderfully unusual Australian vine Kennedia Nigricans or Black Coral Pea vine. This is a rare true black flowering plant, that is perfect for the gothic garden. This plant loves hot dry climates where it blossoms throughout the summer. Can be used as a ground cover or a trellis plant as they grow 12 feet tall and up to 5 feet across. These are drought tolerant plants in zones 8 to 11.